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output: use the output's preferred mode

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On outputs that have modes, we need to set one before we can use it.  We
pick the preferred mode, or if this is not advertised, the last listed
mode. This mode is generally the mode with the highest resolution.

Fixes #10
This commit is contained in:
Jente Hidskes 2019-05-03 21:13:52 +02:00
parent 5af455a905
commit b16fc7d780
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GPG key ID: 04BE5A29F32D91EA
1 changed files with 4 additions and 7 deletions
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11
output.c
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@ -347,14 +347,11 @@ handle_new_output(struct wl_listener *listener, void *data)
{
struct cg_server *server = wl_container_of(listener, server, new_output);
struct wlr_output *wlr_output = data;
struct wlr_output_mode *preferred_mode;
/* On outputs that have modes, we need to set one before we
* can use it. Each monitor supports only a specific set of
* modes. We just pick the last, in the future we could pick
* the mode the display advertises as preferred. */
if (!wl_list_empty(&wlr_output->modes)) {
struct wlr_output_mode *mode = wl_container_of(wlr_output->modes.prev, mode, link);
wlr_output_set_mode(wlr_output, mode);
preferred_mode = wlr_output_preferred_mode(wlr_output);
if (preferred_mode) {
wlr_output_set_mode(wlr_output, preferred_mode);
}
server->output = calloc(1, sizeof(struct cg_output));